fminnm

FMINNM <Zdn>.<T>, <Pg>/M, <Zdn>.<T>, <Zm>.<T>

Predicated Floating-point Min Number.

Pseudocode Operation

No pseudocode available.

Encoding

Binary Layout
01100101
31:24
size
23:22
00
21:20
010
19:17
1
16
100
15:13
Pg
12:10
Zm
9:5
Zdn
4:0
 
Format SVE
Opcode 0x65058000
Extension SVE

Related

Other forms of fminnm

  • fminnm Floating-Point Min Number (Scalar)

More in SVE

Reference

View in Arm A64 ISA Reference ↗ Arm A64 ISA

Instruction Forms

Encoding Instruction ISA Bit pattern
0x0EC00400 FMINNM <Vd>.<T>, <Vn>.<T>, <Vm>.<T> A64 0 | Q | 0 | 01110 | 1 | 10 | Rm | 00 | 000 | 1 | Rn | Rd
0x0EA0C400 FMINNM <Vd>.<T>, <Vn>.<T>, <Vm>.<T> A64 0 | Q | 0 | 01110 | 1 | sz | 1 | Rm | 11000 | 1 | Rn | Rd
0x1EE07800 FMINNM <Hd>, <Hn>, <Hm> A64 0 | 0 | 0 | 11110 | 11 | 1 | Rm | 01 | 11 | 10 | Rn | Rd
0x1E207800 FMINNM <Sd>, <Sn>, <Sm> A64 0 | 0 | 0 | 11110 | 00 | 1 | Rm | 01 | 11 | 10 | Rn | Rd
0x1E607800 FMINNM <Dd>, <Dn>, <Dm> A64 0 | 0 | 0 | 11110 | 01 | 1 | Rm | 01 | 11 | 10 | Rn | Rd
0xC120A121 FMINNM { <Zdn1>.<T>-<Zdn2>.<T> }, { <Zdn1>.<T>-<Zdn2>.<T> }, <Zm>.<T> A64 11000001 | size | 10 | Zm | 101000 | 0100 | 1 | Zdn | 1
0xC120A921 FMINNM { <Zdn1>.<T>-<Zdn4>.<T> }, { <Zdn1>.<T>-<Zdn4>.<T> }, <Zm>.<T> A64 11000001 | size | 10 | Zm | 101010 | 0100 | 1 | Zdn | 0 | 1
0xC120B121 FMINNM { <Zdn1>.<T>-<Zdn2>.<T> }, { <Zdn1>.<T>-<Zdn2>.<T> }, { <Zm1>.<T>-<Zm2>.<T> } A64 11000001 | size | 1 | Zm | 0101100 | 010 | 0 | 1 | Zdn | 1
0xC120B921 FMINNM { <Zdn1>.<T>-<Zdn4>.<T> }, { <Zdn1>.<T>-<Zdn4>.<T> }, { <Zm1>.<T>-<Zm4>.<T> } A64 11000001 | size | 1 | Zm | 00101110 | 010 | 0 | 1 | Zdn | 0 | 1
0x651D8000 FMINNM <Zdn>.<T>, <Pg>/M, <Zdn>.<T>, <const> A64 01100101 | size | 011 | 10 | 1 | 100 | Pg | 0000 | i1 | Zdn
0x65058000 FMINNM <Zdn>.<T>, <Pg>/M, <Zdn>.<T>, <Zm>.<T> A64 01100101 | size | 00 | 010 | 1 | 100 | Pg | Zm | Zdn

Description

Determine the minimum number value of active floating-point elements of the second source vector and corresponding floating-point elements of the first source vector and destructively place the results in the corresponding elements of the first source vector. Regardless of the value of FPCR.AH, the behavior is as follows: Inactive elements in the destination vector register remain unmodified.

Operation

CheckSVEEnabled();
constant integer VL = CurrentVL;
constant integer PL = VL DIV 8;
constant integer elements = VL DIV esize;
bits(PL) mask = P[g, PL];
bits(VL) operand1 = Z[dn, VL];
bits(VL) operand2 = if AnyActiveElement(mask, esize) then Z[m, VL] else Zeros(VL);
bits(VL) result;

for e = 0 to elements-1
    bits(esize) element1 = Elem[operand1, e, esize];
    if ActivePredicateElement(mask, e, esize) then
        bits(esize) element2 = Elem[operand2, e, esize];
        Elem[result, e, esize] = FPMinNum(element1, element2, FPCR);
    else
        Elem[result, e, esize] = element1;

Z[dn, VL] = result;